Question

A milkman adds 20% water to pure milk. If he confesses that he gets a profit of 20% then what is his actual profit?

Answer 1

HEY DEAR ...

According to question,

SP of mixture of milk and water = Rs. 9

Profit = 20%

∴∴ CP of mixture of milk and water

$9 \times \frac{100}{20} = 7.5$
Now we use allegation to find the ratio in which water and milk mixed

So ,
$\frac{7.5}{2.5} = 3 \binom{.}{.} 1$

HOPE , IT HELPS ...

$good \: night$